зеркало из https://github.com/mozilla/gecko-dev.git
300 строки
10 KiB
C++
300 строки
10 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public
|
|
* License Version 1.1 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS
|
|
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
|
* implied. See the License for the specific language governing
|
|
* rights and limitations under the License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All
|
|
* Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*/
|
|
|
|
#ifndef nsFormControlFrame_h___
|
|
#define nsFormControlFrame_h___
|
|
|
|
#include "nsIFormControlFrame.h"
|
|
#include "nsFormControlHelper.h"
|
|
#include "nsIFormManager.h"
|
|
#include "nsISupports.h"
|
|
#include "nsIWidget.h"
|
|
#include "nsLeafFrame.h"
|
|
#include "nsCoord.h"
|
|
#include "nsIStyleContext.h"
|
|
|
|
class nsIView;
|
|
class nsIPresContext;
|
|
class nsStyleCoord;
|
|
class nsFormFrame;
|
|
|
|
#define CSS_NOTSET -1
|
|
#define ATTR_NOTSET -1
|
|
|
|
#define NS_FORMSIZE_NOTSET -1
|
|
|
|
#ifdef DEBUG_rods
|
|
|
|
#define COMPARE_QUIRK_SIZE(__class, __navWidth, __navHeight) \
|
|
{ \
|
|
float t2p; \
|
|
aPresContext->GetTwipsToPixels(&t2p); \
|
|
printf ("%-25s::Size=%4d,%4d %3d,%3d Nav:%3d,%3d Diffs: %3d,%3d\n", \
|
|
(__class), \
|
|
aDesiredSize.width, aDesiredSize.height, \
|
|
NSToCoordRound(aDesiredSize.width * t2p), \
|
|
NSToCoordRound(aDesiredSize.height * t2p), \
|
|
(__navWidth), \
|
|
(__navHeight), \
|
|
NSToCoordRound(aDesiredSize.width * t2p) - (__navWidth), \
|
|
NSToCoordRound(aDesiredSize.height * t2p) - (__navHeight)); \
|
|
}
|
|
|
|
#else
|
|
#define COMPARE_QUIRK_SIZE(__class, __navWidth, __navHeight)
|
|
#endif
|
|
|
|
/**
|
|
* nsFormControlFrame is the base class for frames of form controls. It
|
|
* provides a uniform way of creating widgets, resizing, and painting.
|
|
* @see nsLeafFrame and its base classes for more info
|
|
*/
|
|
class nsFormControlFrame : public nsLeafFrame,
|
|
public nsIFormControlFrame
|
|
{
|
|
|
|
public:
|
|
/**
|
|
* Main constructor
|
|
* @param aContent the content representing this frame
|
|
* @param aParentFrame the parent frame
|
|
*/
|
|
nsFormControlFrame();
|
|
|
|
NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);
|
|
|
|
/**
|
|
* Respond to a gui event
|
|
* @see nsIFrame::HandleEvent
|
|
*/
|
|
NS_IMETHOD HandleEvent(nsIPresContext* aPresContext,
|
|
nsGUIEvent* aEvent,
|
|
nsEventStatus* aEventStatus);
|
|
|
|
/**
|
|
* Draw this frame within the context of a presentation context and rendering context
|
|
* @see nsIFrame::Paint
|
|
*/
|
|
NS_IMETHOD Paint(nsIPresContext* aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect,
|
|
nsFramePaintLayer aWhichLayer);
|
|
|
|
NS_IMETHOD SetInitialChildList(nsIPresContext* aPresContext,
|
|
nsIAtom* aListName,
|
|
nsIFrame* aChildList);
|
|
|
|
NS_IMETHOD DidReflow(nsIPresContext* aPresContext,
|
|
nsDidReflowStatus aStatus);
|
|
|
|
/**
|
|
* Respond to the request to resize and/or reflow
|
|
* @see nsIFrame::Reflow
|
|
*/
|
|
NS_IMETHOD Reflow(nsIPresContext* aCX,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus);
|
|
|
|
// new behavior
|
|
|
|
/**
|
|
* Get the class id of the widget associated with this frame
|
|
* @return the class id
|
|
*/
|
|
virtual const nsIID& GetCID();
|
|
|
|
/**
|
|
* Get the interface id of widget associated with this frame
|
|
* @return the interface id
|
|
*/
|
|
virtual const nsIID& GetIID();
|
|
|
|
NS_IMETHOD GetType(PRInt32* aType) const;
|
|
NS_IMETHOD GetName(nsString* aName);
|
|
NS_IMETHOD GetValue(nsString* aName);
|
|
virtual PRInt32 GetMaxNumValues();
|
|
virtual PRBool GetNamesValues(PRInt32 aMaxNumValues, PRInt32& aNumValues,
|
|
nsString* aValues, nsString* aNames);
|
|
|
|
/**
|
|
* Respond to a enter key being pressed
|
|
*/
|
|
virtual void EnterPressed(nsIPresContext* aPresContext) {}
|
|
|
|
/**
|
|
* Respond to a mouse click (e.g. mouse enter, mouse down, mouse up)
|
|
*/
|
|
virtual void MouseClicked(nsIPresContext* aPresContext) {}
|
|
|
|
/**
|
|
* Respond to a control change (e.g. combo box close-up)
|
|
*/
|
|
virtual void ControlChanged(nsIPresContext* aPresContext) {}
|
|
|
|
/**
|
|
* Perform opertations after the widget associated with this frame has been
|
|
* created.
|
|
*/
|
|
virtual void PostCreateWidget(nsIPresContext* aPresContext,
|
|
nscoord& aWidth, nscoord& aHeight);
|
|
|
|
virtual void SetFocus(PRBool aOn = PR_TRUE, PRBool aRepaint = PR_FALSE);
|
|
virtual void ScrollIntoView(nsIPresContext* aPresContext);
|
|
virtual void Reset(nsIPresContext* aPresContext);
|
|
virtual PRBool IsSuccessful(nsIFormControlFrame* aSubmitter);
|
|
|
|
/**
|
|
* Perform opertations before the widget associated with this frame has been
|
|
* created.
|
|
*/
|
|
virtual nsWidgetInitData* GetWidgetInitData(nsIPresContext* aPresContext);
|
|
|
|
void GetWidgetSize(nsSize& aSize) const { aSize.width = mWidgetSize.width;
|
|
aSize.height = mWidgetSize.height; }
|
|
|
|
// XXX similar functionality needs to be added to widget library and these
|
|
// need to change to use it.
|
|
static nscoord GetScrollbarWidth(float aPixToTwip);
|
|
virtual nscoord GetVerticalBorderWidth(float aPixToTwip) const;
|
|
virtual nscoord GetHorizontalBorderWidth(float aPixToTwip) const;
|
|
virtual nscoord GetVerticalInsidePadding(nsIPresContext* aPresContext,
|
|
float aPixToTwip,
|
|
nscoord aInnerHeight) const;
|
|
virtual nscoord GetHorizontalInsidePadding(nsIPresContext* aPresContext,
|
|
float aPixToTwip,
|
|
nscoord aInnerWidth,
|
|
nscoord aCharWidth) const;
|
|
virtual nsresult GetSizeFromContent(PRInt32* aSize) const;
|
|
NS_IMETHOD GetMaxLength(PRInt32* aSize);
|
|
|
|
virtual void SetClickPoint(nscoord aX, nscoord aY);
|
|
nsFormFrame* GetFormFrame() { return mFormFrame; }
|
|
virtual void SetFormFrame(nsFormFrame* aFormFrame) { mFormFrame = aFormFrame; }
|
|
|
|
NS_IMETHOD GetFont(nsIPresContext* aPresContext,
|
|
nsFont& aFont);
|
|
|
|
NS_IMETHOD GetFormContent(nsIContent*& aContent) const;
|
|
|
|
/**
|
|
* Get the width and height of this control based on CSS
|
|
* @param aPresContext the presentation context
|
|
* @param aSize the size that this frame wants, set by this method. values of -1
|
|
* for aSize.width or aSize.height indicate unset values.
|
|
*/
|
|
static void GetStyleSize(nsIPresContext* aContext,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsSize& aSize);
|
|
|
|
// nsIFormControlFrame
|
|
NS_IMETHOD SetProperty(nsIPresContext* aPresContext, nsIAtom* aName, const nsString& aValue);
|
|
NS_IMETHOD GetProperty(nsIAtom* aName, nsString& aValue);
|
|
|
|
protected:
|
|
|
|
virtual ~nsFormControlFrame();
|
|
|
|
|
|
/**
|
|
* Determine if the control uses a native widget for rendering
|
|
* @param aRequiresWidget is set to PR_TRUE if it has a native widget, PR_FALSE otherwise.
|
|
* @returns NS_OK
|
|
*/
|
|
|
|
virtual nsresult RequiresWidget(PRBool &aRequiresWidget);
|
|
|
|
|
|
/**
|
|
* Get the size that this frame would occupy without any constraints
|
|
* @param aPresContext the presentation context
|
|
* @param aDesiredSize the size desired by this frame, to be set by this method
|
|
* @param aMaxSize the maximum size available for this frame
|
|
*/
|
|
virtual void GetDesiredSize(nsIPresContext* aPresContext,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsHTMLReflowMetrics& aDesiredSize);
|
|
|
|
virtual void GetDesiredSize(nsIPresContext* aPresContext,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsHTMLReflowMetrics& aDesiredLayoutSize,
|
|
nsSize& aDesiredWidgetSize);
|
|
|
|
NS_IMETHOD SetSuggestedSize(nscoord aWidth, nscoord aHeight);
|
|
|
|
//
|
|
//-------------------------------------------------------------------------------------
|
|
// Utility methods for managing checkboxes and radiobuttons
|
|
//-------------------------------------------------------------------------------------
|
|
//
|
|
/**
|
|
* Get the state of the checked attribute.
|
|
* @param aState set to PR_TRUE if the checked attribute is set,
|
|
* PR_FALSE if the checked attribute has been removed
|
|
* @returns NS_OK or NS_CONTENT_ATTR_HAS_VALUE
|
|
*/
|
|
|
|
nsresult GetCurrentCheckState(PRBool* aState);
|
|
|
|
/**
|
|
* Set the state of the checked attribute.
|
|
* @param aState set to PR_TRUE to set the attribute,
|
|
* PR_FALSE to unset the attribute
|
|
* @returns NS_OK or NS_CONTENT_ATTR_HAS_VALUE
|
|
*/
|
|
|
|
nsresult SetCurrentCheckState(PRBool aState);
|
|
|
|
/**
|
|
* Get the state of the defaultchecked attribute.
|
|
* @param aState set to PR_TRUE if the defaultchecked attribute is set,
|
|
* PR_FALSE if the checked attribute has been removed
|
|
* @returns NS_OK or NS_CONTENT_ATTR_HAS_VALUE
|
|
*/
|
|
|
|
nsresult GetDefaultCheckState(PRBool* aState);
|
|
|
|
/**
|
|
* Set the state of the checked attribute.
|
|
* @param aState set to PR_TRUE to set the checked attribute
|
|
* PR_FALSE to unset it
|
|
* @returns NS_OK
|
|
*/
|
|
|
|
nsresult SetDefaultCheckState(PRBool aState);
|
|
|
|
nsSize mWidgetSize;
|
|
PRBool mDidInit;
|
|
nsPoint mLastClickPoint;
|
|
nsFormFrame* mFormFrame;
|
|
nscoord mSuggestedWidth;
|
|
nscoord mSuggestedHeight;
|
|
|
|
private:
|
|
NS_IMETHOD_(nsrefcnt) AddRef() { return NS_OK; }
|
|
NS_IMETHOD_(nsrefcnt) Release() { return NS_OK; }
|
|
|
|
};
|
|
|
|
#endif
|
|
|